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      <h1>Nginx 动态生成缩略图</h1>
<p>[TOC]</p>
<p>有的时候要生成大量尺寸的缩图，事先不知道有哪些尺寸，所以可以用php动态生成；</p>
<p>1.在nginx中配置</p>
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-nginx" data-lang="nginx"><span style="display:flex;"><span><span style="color:#66d9ef">location</span> ~ <span style="color:#e6db74">..(gif|jpg|jpeg|png|bmp)$</span>
</span></span><span style="display:flex;"><span>        {
</span></span><span style="display:flex;"><span>                <span style="color:#f92672">if</span> <span style="color:#e6db74">(</span> <span style="color:#e6db74">!-f</span> $request_filename<span style="color:#e6db74">)</span> {
</span></span><span style="display:flex;"><span>                        <span style="color:#f92672">rewrite</span> <span style="color:#e6db74">^(.)/(.*)(\d+)(\d+).(gif|jpg|jpeg|png|bmp)</span> <span style="color:#e6db74">/ImageTransferController.php?s=1/2_3_4.5</span>;
</span></span><span style="display:flex;"><span>                }
</span></span><span style="display:flex;"><span>                <span style="color:#f92672">expires</span>      <span style="color:#e6db74">30d</span>;
</span></span><span style="display:flex;"><span>        }
</span></span></code></pre></div><ol start="2">
<li>完善 ImageTransferController.php 文件</li>
</ol>

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